ArchSection ViewTab is a sectional image exploration view. Instead of conventional X-Y-Z sections, this view allows to the user to review the image in dentally meaningful perspectives using multiple cross sections, traversing the lengths of the dental arches.
ArchSection: Toolbar
Shown below is the Toolbar and tools that are loaded with the ArchSection Tab:
Reset View: Resets the window to the original view.
Create Arch Spline (Focal Trough): After selecting this tool, you can create a new arch spline or edit an existing arch spline. First, left-click on the point you would like to start and continue adding points by left-clicking. After you have marked your final point, right-click or double-click to finalize the arch spline. When modifying an existing arch spline, drag the control points to the desired positions.
Arch Spline (Focal Trough) Ruler: Places ruler along the arch spline for easy reference.
Distance Measurement: After selecting this tool, click two points to mark the desired distance. A number in millimeters will automatically display.
Angle Measurement: Select this option and mark three points on the volume and the angle between them will appear. Clicking on their control points and moving the cursor can modify measurements. Click on the measurement and press the “delete” key to delete it.
Area Measurement: After selecting this tool, click multiple points along the boundary of the desired area. Double-click or right-click to end the measurement. A number in millimeters square will be automatically display. Click on the measurement and press the “delete” key to delete it.
Polygonal Measurement: When selected, you may mark an unlimited number of points on the volume and the total between the first point and the last point will appear. Right-click your mouse to indicate that you have marked your last point. Clicking on the point and moving the cursor can modify points. Click on the measurement and press the “delete” key to delete it.
Layout: Creates a different layout to your preference. After clicking on the layout icon, a list of various layout options will appear. Click on the layout of your preference to apply it. These options allow for different case workup images.
Toggle Cursor Visibility: Conceals or displays cursors.
Information Display: Displays or hides case information embedded in the data.
Arrow Notation: Allows an arrow to be drawn on the image.
Circle Notation: Allows a circle to be drawn on the image.
Text Notation: Allows text to be written and edited on the image.
View Sequence: Allows for the creation of custom camera sequences and AVI file movie capturing. Refer to the Volume Render View Sequence (p. 58) section for additional information and description.
Slice Capture Mode: Opens the Slice Capture Manager to enable the capture of slices or groups of slices from a series of cross sections. Requires the creation of a slice group in the Report Tan (see Report: Features and Report: Group Management Creation for details)and an activated Report module.
HU Measurement: Allows for a calculation of the HU value of an area within a bounding box.
The user can create multiple HU measurements on a single image. Measurement information is displayed next to the defined measurement area that the user creates, and the text can be repositioned by clicking and dragging the text box with the left-mouse button. The font color and size of the measurement text can be changed using the preference settings from the File menu.The HU measurement will also display the calculated area and standard deviation for the region chosen.
Warning: Any measurement that is incorrect can lead to surgical complications if diagnosis, treatment plans and/or actual treatment is based off of the incorrect measurements. It is critical for the end user to learn how to perform measurements correctly and employ proper usage of all measurement tools. Measurement accuracy depends on the image data and the hardware scanner that generated the image data. The measurement cannot be more precise than the resolution of the image. Software reports the value based on user-picked points. Due to the nature of medical imaging, the boundary is not always well defined. The apparent boundary depends on the current brightness and contrast setting. The boundary may shift as the user makes adjustments to brightness and contrast. The user must understand the limitation of the measurement value before applying to the patient. If you notice any inconsistencies or software problems with measurements, or have further questions or concerns about using measurement tools correctly, please contact us at (408) 885-1474 or email us at [email protected]
ArchSection: Control Panel
Layout:
• “Screen” layout is optimized for viewing the image on the computer screen. “Print Out” layout is optimized for printing the image on paper. With Print Out layout, what you see on screen will be what you get on the paper in life size. First capture to Gallery, then print from Gallery to ensure the image is life size.
• Change Layout allows you to adjust the layout with different amounts of slices and orientations.
Axial Section:
• Interval: Distance between the subsequent axial sections.
• “Adjust Range and Orientation” will switch to the view that you can change the upper and lower limit of pano and cross sections. You can also reorient the image in this view.
Cross Section:
• Width: Cross-section width
• Interval: Distance between the subsequent cross sections.
• Thickness: Allows for the cumulative thickness of the slices to be viewed in the cross sections.
• Auto R-L: This will allow the cross section to be oriented to a consistent R-L orientation on screen. If turned off, the cross-section orientation will be consistent to the arch spline.
Panoramic Image:
• Slice mode will show you a single cross section along the panoramic curve (yellow). This mode is used for tracing the nerve.
• X-ray will show you the ray sum (reconstructed x-ray) in the focal trough.
• Tru-Pan™: This option enables the one-click volumetric pan that can be created from scans taken by a i-CAT© Cone Beam 3D system. See more information in the Tru-Pan™ section of the manual.
View Control:
• Brightness and Contrast allow you to adjust the image.
• The All drop-down allows you to adjust brightness/contrast in different areas independently.
• Different Color Presets can be used to view the images in color.
• Image Sharpening: Filter applies the selected sharpening filter from the dropdown menu to the 2D slice renderers.
Nerve Pathway:
• New Nerve: Starts a new nerve tracing.
• Modify: Allows editing of the selected nerve tracing.
• Visibility: Controls the visibility of the nerve in the section and X-ray renderers.
• Nerve Node: Select a specific node for modification.
• Diameter: Selects the diameter of the nerve that has been traced or a specifically selected node.
• Delete: Deletes the last placed node during the tracing or the entire nerve if Modify is active.
HU Shape:
• The shape of the HU measurements can set to Rectangle, Circle, or Ellipse. Each shape is defined by two left- clicks and allows adjustments to the size to be made by first left-clicking to select the image and then left-clicking and dragging the red dots to adjust the size or the yellow perimeter to adjust the position.
Save View Settings
Saves the current 2D View settings to be reloaded upon opening any case. See the Display Preferences section in Preferences (pg. 18) for more information on which settings are saved for this specific tab.
Warning: Any nerve that is traced in a way that does not conform to the actual pathway of the nerve can lead to surgical complications if diagnosis, treatment plans and/or actual treatment is based off of the incorrect tracing. It is critical for the end user to learn how to properly perform nerve tracings correctly. If you notice any inconsistencies or software problem with nerve tracing or have further questions or concerns about nerve tracing, please contact Anatomage support at (408) 885-1474 or email us at [email protected]
ArchSection: Creating A Nerve Pathway
Creating a Nerve Pathway (e.g. Inferior Alveolar by following the mandibular canal to its exit).
• Click New Nerve.
• Left-click the mouse where you want the nerve to start.
• Move the mouse to the next point along the nerve path and left-click again.
• Click Delete to remove the last-placed node if it is mispositioned.
• Repeat this procedure for the entire length of the nerve.
• 2.0mm is the default diameter of the nerve pathway, but you may adjust it for your preference.
• Press Done to finish.
Editing a Nerve Pathway
• Click on a nerve tracing to select it. This highlights it in a brighter red color.
• Set the Nerve Node drop-down menu to “All” or a specific node.
• If “All” is selected, the entire nerve tracing’s diameter can be adjusted.
• If a single node is selected, it will be highlighted in the scan, and its diameter and position may be adjusted independently. The nerve node diameter is adjusted in the Diameter drop-down menu. The highlighted node can be moved by clicking and dragging it across the scan.
Deleting a Nerve Pathway
• The Delete button can be used if a point was plotted in the wrong spot; it will delete the last point added.
• Once a nerve has been completed and Done has been clicked, the nerve can be deleted by clicking on it and pressing the “delete” key on the keyboard or the Delete button.
• Visibility will turn the nerve on or off from view.
Warning: Any nerve that is traced in a way that does not conform to the actual pathway of the nerve can lead to surgical complications if diagnosis, treatment plans and/or actual treatment is based off of the incorrect tracing. It is critical for the end user to learn how to properly perform nerve tracings correctly. If you notice any inconsistencies or software problems with nerve tracing or have further questions or concerns about nerve tracing, please contact Anatomage support at (408) 885-1474 or email us at [email protected]
ArchSection: Rendering Window
Arch Cursor: Notice the green, orange, and brown coordinate indicators. These ArchSection coordinate indicators show where you are spatially located within the ArchSection modeling window.
• Cross Section Indicator: The green lines give the location of the cross sections along the arch spline.
• Axial Slice Indicator: The orange line shows the axial coordinate position within the section.
• Arch Spline: The brown spline in the center of the arch spline represents the current position where the arch section has moved.
• Cross Section: Mouse scrolling within any one of the three sagittal frames advances the slices to the patient’s right or left and causes the green coordinate indicator to move anteriorly or posteriorly in the axial and pano sections simultaneously.
• Axial Section: Mouse scrolling within the axial section advances the sections superiorly or inferiorly and causes the red coordinate indicator to move superiorly or inferiorly in the cross or pano sections simultaneously.
Pano Section: Mouse scrolling within the coronal frame advances the slices buccally or lingually and causes
the brown coordinate indicator to move buccally or lingually in the axial and cross sections simultaneously.